Make sure personnel are prepared to respond to emergencies safely and effectively.

NFPA 329 outlines the appropriate methods for responding to fire, explosion, and human health hazards resulting from the release of a flammable, combustible, or otherwise hazardous liquid, gas, or vapor that may migrate to a subsurface structure. It incorporates provisions from NFPA 328 : Recommended Practice for the Control of Flammable and Combustible Liquids and Gases in Manholes, Sewers, and Similar Underground Structures .

The 2005 edition of NFPA 329 was rewritten to correlate with the 2005 NFPA 326: Standard for the Safeguarding of Tanks and Containers for Entry, Cleaning, or Repair . It also contains editorial and format changes that make requirements easier to understand and apply.